Keg Cop: Keg Monitoring and Control

[rkhanso]

@LBussy - what is intended to be put in the left side of the main enclosure?
I have a 2-channel relay board but the holes don't line up with the screw posts. But I suspect a 2-channel relay is the intent of the left side.

I'm running an SSR to control my compressor. Will the ubiquitous blue 10A relays handle the fridge compressor? I think I burned one of the blue mechanical relays out when trying to control a compressor in the past. Wondering if I should give a mechanical 10A relay a try again or if I need to print a case for the SSR.

 

[LBussy]

Yes, that's for a 2-Ch relay. Some fit better than others. On a couple I was only able to get one screw in. That's fine. Chinese and standards do not seem to cross paths.

 

[lagerbeer666]

Kegcop MQTT to Home Assistant works great:

 

[LBussy]

Kegcop MQTT to Home Assistant works great:

Thanks for the report!

 

[rkhanso]

Kegcop MQTT to Home Assistant works great:

Does yours ever stop communicating to HA via MQTT after an extended period of time and just show "Unavailable" for everything in Home Assistant? Mine does that even though I can still get to the Keg Cop web GUI. If I reboot the ESP, then the data will show up again.....for a while (days? weeks? Haven't timed it).

 

[lagerbeer666]

Does yours ever stop communicating to HA via MQTT after an extended period of time and just show "Unavailable" for everything in Home Assistant? Mine does that even though I can still get to the Keg Cop web GUI. If I reboot the ESP, then the data will show up again.....for a while (days? weeks? Haven't timed it).

I mostly get disconnects from HA updating or me resetting the system after code updates.
I have to use the KC software reset to get MQTT to reset.

 

[MikeWhy]

Hi all

I have some parts I am looking to get rid of , as one lot not interested in selling off individual items. Couldn’t find an answer if selling is allowed within this forum area or if it needs to go in the for sale section, which. To be fair would make sense but the people likely to be interested will be reading this thread, anyway will pause there and if nobody complains will add more detail or move this off to another forum area

Cheers
Mike

 

[Exception13]

Hi all

I have some parts I am looking to get rid of , as one lot not interested in selling off individual items. Couldn’t find an answer if selling is allowed within this forum area or if it needs to go in the for sale section, which. To be fair would make sense but the people likely to be interested will be reading this thread, anyway will pause there and if nobody complains will add more detail or move this off to another forum area

Cheers
Mike

PM sent

 

[MikeWhy]

Ok so nobody told me off so far so will carry on , so in terms of parts we have

1 working system lolin d32 , with relay module , temp module and 4 flow sensors one of which is a brand new Swiss flow.
I was messing around with this one and trying to integrate into taplist.io but couldn’t get it working reliably at the time , things have moved on so no longer needed.

But of course it’s not easy or cost effective to buy the correct number of parts so there are enough parts to build another complete system with two sensors plus a load of other spares, connectors , basically everything shown in the pictures is included

This is all in the uk but it fits into a small package so can’t imagine posting worldwide would be a big problem.

Appreciate component prices change based on where you are in the world, but based on uk prices , import tax etc I would guess around £250 worth , have no idea what these are worth so just looking for a sensible offer

Cheers
Mike

 

[Lalo_uy]

Hi, very nice project.
Any one have tried with this kind of flow meters?
They have a propeller like inline, so not very convoluted path for the beer.

 

[LBussy]

The recommended flow meters, while expensive, do not promote much foaming. Some of the less expensive ones for “coffee makers” do create more. I have never used that one specifically.

 

[day_trippr]

The SwissFlow SF800 meters I've been using since 2014 have tiny rotors as well...

Cheers!

 

[LBussy]

They do, but they use infrared as a Hall effect sort of thing where the others I have seen myself had a physical counter. These may be great, just never used them.

 

[Lalo_uy]

I try the tourbine type some years ago for a bottle filler and the foam was disastrous.
The filler finally use an inox electrode to sense the beer in the bottle neck.
But these “in line” arived after that solution and never where tested.
The sensor is hall, with infrared you can “see” all 3 blades an have more accuracy.
Will give them a shoot. They are here, what to loose?

 

[LBussy]

All you have to lose is a few ounces of beer and a little time. What we get back is more info.

 

[DaveS]

I try the tourbine type some years ago for a bottle filler and the foam was disastrous.
The filler finally use an inox electrode to sense the beer in the bottle neck.
But these “in line” arived after that solution and never where tested.
The sensor is hall, with infrared you can “see” all 3 blades an have more accuracy.
Will give them a shoot. They are here, what to loose?

Please report back how well these work and a link to purchase if working well.
Cheers

 

[DuncB]

I've been using these with raspberry pints, positioned as close to ball lock connector as possible. I do use a 9.5 mm ( 3/8) to 8mm adapter after the flow meter.

I've used my counter pressure bottle filler as well direct off the taps and not had a foaming issue.
https://www.aliexpress.com/item/328...5e33c6d2&utparam-url=scene:search|query_from:

I tried the black meters that had half inch BSP connectors but they made the beer taste horrible.

 

[pers]

Not sure if this is a bug or how it's intended to work but ran into an interesting occurrence.

Forgot to make my taps inactive while running cleaner and sanitizer through them. One of the taps went pretty negative to almost -2 gallons. This tap completely disappeared from the home screen.

Going into the tap settings it showed as active. Selecting active/inactive and trying to apply seemed to do nothing. Finally realized that manually setting back to a non negative fixed everything and brought tap back to home screen.

 

[LBussy]

Not sure if this is a bug or how it's intended to work but ran into an interesting occurrence.

I am not sure what unintended there, but that’s what I would consider unexpected. Not necessarily the largest bug ever, but it likely should be addressed.

If you’ve ever done any work with these you probably know how perilous it is to go back later just for a small change. Libraries and especially core libraries move on and you are often left wishing you had ignored it.

 

[beren]

Might be as simple as making any negative numbers go to zero

 

[LBussy]

Might be as simple as making any negative numbers go to zero

The initial fix is always easy. The challenge is to get everything else to work again with updated core libs.

 

[Lalo_uy]

It gets harder in Arduino world, where a new version of a lib may change the API and the IDE push you to update.

 

[Lalo_uy]

it's a way to flash without brewflasher?
Try to follow the instruccions for Linux install and stumble to:

git clone [email protected]:thorrak/brewflasher.git
Cloning into 'brewflasher'...
[email protected]: Permission denied (publickey).
fatal: Could not read from remote repository.


Please make sure you have the correct access rights
and the repository exists.

Dowloaded 3 files :
lolin_d32_firmware.bin
lolin_d32_littlefs.bin
lolin_d32_partitions.bin

For using esptool witch order or offsets of each one?

Thanks in advance.

 

[LBussy]

Calling @Thorrak .. what did you change?

 

[Thorrak]

Nothing that I'm aware of - but I don't typically use/test on Linux GUIs.

Try using BrewFlasher Command Line Edition: https://github.com/thorrak/brewflasher_cli

 

[LBussy]

[email protected]: Permission denied (publickey).

Where did you see those instructions?

The [email protected] is forcing you to authenticate as the upstream "git" user, which is wrong. it should be:

git clone https://github.com/thorrak/brewflasher.git

 

[Lalo_uy]

Where did you see those instructions?

The [email protected] is forcing you to authenticate as the upstream "git" user, which is wrong. it should be:

git clone https://github.com/thorrak/brewflasher.git

Brewflasher README.md

Running from python source on Linux Section​

Will try cli version

 

[LBussy]

Ah that's @Thorrak's fault then.

You might try the command I shared.

 

[Thorrak]

Ah that's @Thorrak's fault then.

You might try the command I shared.

Eeeehhhh, it wasn't entirely my fault...

The [email protected] is forcing you to authenticate as the upstream "git" user, which is wrong. it should be:

git clone https://github.com/thorrak/brewflasher.git

Regardless, updated the readme. Still untested, but hopefully better!

 

[Lalo_uy]

Ok, finally got brewflasher running
the pip command lasted overnight to complete.

to run : python3 Main.py and have a happy flashing

Tnx for the help